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-rw-r--r--test/test_snat.py67
1 files changed, 63 insertions, 4 deletions
diff --git a/test/test_snat.py b/test/test_snat.py
index b6cc1c9a17f..a67deede7a5 100644
--- a/test/test_snat.py
+++ b/test/test_snat.py
@@ -6,7 +6,7 @@ import struct
from framework import VppTestCase, VppTestRunner
from scapy.layers.inet import IP, TCP, UDP, ICMP
-from scapy.layers.l2 import Ether
+from scapy.layers.l2 import Ether, ARP
from scapy.data import IP_PROTOS
from util import ppp
from ipfix import IPFIX, Set, Template, Data, IPFIXDecoder
@@ -524,9 +524,7 @@ class TestSNAT(VppTestCase):
self.pg3.assert_nothing_captured()
def test_multiple_inside_interfaces(self):
- """
- SNAT multiple inside interfaces with non-overlapping address space
- """
+ """ SNAT multiple inside interfaces (non-overlapping address space) """
self.snat_add_address(self.snat_addr)
self.vapi.snat_interface_add_del_feature(self.pg0.sw_if_index)
@@ -862,6 +860,67 @@ class TestSNAT(VppTestCase):
data = ipfix.decode_data_set(p.getlayer(Set))
self.verify_ipfix_addr_exhausted(data)
+ def test_pool_addr_fib(self):
+ """ S-NAT add pool addresses to FIB """
+ static_addr = '10.0.0.10'
+ self.snat_add_address(self.snat_addr)
+ self.vapi.snat_interface_add_del_feature(self.pg0.sw_if_index)
+ self.vapi.snat_interface_add_del_feature(self.pg1.sw_if_index,
+ is_inside=0)
+ self.snat_add_static_mapping(self.pg0.remote_ip4, static_addr)
+
+ # SNAT address
+ p = (Ether(src=self.pg1.remote_mac, dst='ff:ff:ff:ff:ff:ff') /
+ ARP(op=ARP.who_has, pdst=self.snat_addr,
+ psrc=self.pg1.remote_ip4, hwsrc=self.pg1.remote_mac))
+ self.pg1.add_stream(p)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ capture = self.pg1.get_capture(1)
+ self.assertTrue(capture[0].haslayer(ARP))
+ self.assertTrue(capture[0][ARP].op, ARP.is_at)
+
+ # 1:1 NAT address
+ p = (Ether(src=self.pg1.remote_mac, dst='ff:ff:ff:ff:ff:ff') /
+ ARP(op=ARP.who_has, pdst=static_addr,
+ psrc=self.pg1.remote_ip4, hwsrc=self.pg1.remote_mac))
+ self.pg1.add_stream(p)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ capture = self.pg1.get_capture(1)
+ self.assertTrue(capture[0].haslayer(ARP))
+ self.assertTrue(capture[0][ARP].op, ARP.is_at)
+
+ # send ARP to non-SNAT interface
+ p = (Ether(src=self.pg2.remote_mac, dst='ff:ff:ff:ff:ff:ff') /
+ ARP(op=ARP.who_has, pdst=self.snat_addr,
+ psrc=self.pg2.remote_ip4, hwsrc=self.pg2.remote_mac))
+ self.pg2.add_stream(p)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ capture = self.pg1.get_capture(0)
+
+ # remove addresses and verify
+ self.snat_add_address(self.snat_addr, is_add=0)
+ self.snat_add_static_mapping(self.pg0.remote_ip4, static_addr,
+ is_add=0)
+
+ p = (Ether(src=self.pg1.remote_mac, dst='ff:ff:ff:ff:ff:ff') /
+ ARP(op=ARP.who_has, pdst=self.snat_addr,
+ psrc=self.pg1.remote_ip4, hwsrc=self.pg1.remote_mac))
+ self.pg1.add_stream(p)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ capture = self.pg1.get_capture(0)
+
+ p = (Ether(src=self.pg1.remote_mac, dst='ff:ff:ff:ff:ff:ff') /
+ ARP(op=ARP.who_has, pdst=static_addr,
+ psrc=self.pg1.remote_ip4, hwsrc=self.pg1.remote_mac))
+ self.pg1.add_stream(p)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ capture = self.pg1.get_capture(0)
+
def tearDown(self):
super(TestSNAT, self).tearDown()
if not self.vpp_dead: